Ellory Yu wrote:I find this discussion kind of silly. I build my own systems and never once had any issues. I use the DeckLink 4K mini monitor too, RAID, dual GPU, etc. The first thing to do is make sure all the components, from MB to CPU to Cards, fans, and power are all compatible with each other. How, easy. Go to PC Parts Picker. Start with the mobo, then look and select the compatible CPU, memory, power supply, and just keep doing the same all the way to GPU cards, fans, etc. Validate you have enough PCI-E lanes to throw anything on those slots and that the combination will allow for the card to fully use the lanes. When you're happy with the kit, build it. Then bring in the OS (Windows 10 Pro 64 bit), the appropriate and latest drivers, and finally install Resolve. No need for a certified mobo. Your weakest link will be what you can get for your money as the right combo can cost $$$$.
I wouldn't say that this thread is "silly", but I understand where you are coming from. In a past life I was in IT and am very comfortable building my own workstations. You can save a lot of money doing this. Many of the parts can be reused/repurposed (Case, hard drives, peripherals, etc.). Most of the money goes towards the CPU, MOBO, and memory.
So, yeah, this is a great option if you are comfortable building your own workstation, but I can see where people would feel uncomfortable with it. Then there are those that prefer to use laptops. +1 on using PC Parts Picker. It can help save a lot of time.